Pete Transformers manufactures Varnish Impregnated Transformer with OLTC . Pete Transformers is an ISO9001:2008 certified company. Pete Transformers also manufactures Power transformer, distribution transformer, corrugated transformer, furnace transformer, submerged transformer, dry type-varnish impregnated, mining transformer, voltage regulator etc. Varnish Impregnated Transformer with OLTC [on-load tap changer] is a device that is used for high power application. The Varnish Impregnated Transformer with OLTC has controlled heating and is very energy inefficient. The Varnish Impregnated Transformer with OLTC has the varnish filled up in the gaps that help to prevent the possible formation of corona and absorption of dirt or water and is more suited to damp or dirty environments.